Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2021	Apr. 03, 2020
Finite-Lived Intangible Assets [Line Items]
Non-cash goodwill impairment charge	$ 62	$ 301
Amortization expense for intangible assets	164	158
CPS Business | Disposal Group, Held-for-sale, Not Discontinued Operations
Finite-Lived Intangible Assets [Line Items]
Goodwill assigned to disposal group	112
Aviation Systems | CPS Business | Disposal Group, Held-for-sale, Not Discontinued Operations
Finite-Lived Intangible Assets [Line Items]
Goodwill assigned to disposal group	174
Non-cash goodwill impairment charge	$ 62
Commercial Aviation Solutions | COVID-19
Finite-Lived Intangible Assets [Line Items]
Non-cash goodwill impairment charge		296
Non-cash goodwill impairment charge attributable to noncontrolling interests		$ 28